*) experts for experts. Seamless and welded cold drawn precision steel tubes

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1 *) experts for experts. Seamless and welded cold drawn precision steel tubes 1

2 Innovative and successful solutions are always within your reach with voestalpine Rotec, your reliable partner with professional expertise in the development and manu- facturing of precision steel tubes and tube components. *) experts for experts: Let s talk about precision steel tubes. Seamless and welded cold drawn precision steel tubes in acc. with EN and EN As specialists in processes and materials, we develop product solutions tailored to the individual needs of our customers, adapted to ever-growing requirements and geared toward ensuring the increased market presence of our customers. Long-term partnerships, high quality standards and innovations make us a professional partner to industry. Area of use The applications for seamless and welded precision steel tubes are determined by special technical features. These are as follows: high dimensional accuracy for inside and outside diameters smooth surfaces achieved by drawing improved strength characteristics due to cold forming closely graduated dimensional range low concentricity in welded precision steel tubes Production method The pre-material for precision steel tubes is selected, fully killed LD or electrical steel cast continuously in slabs. It is first checked and then processed into hollow pre-material tubes. The hollows are cold formed on state of the art drawing benches. Subsequent heat treatment and passage through high-tech straightening and testing benches complete the production process into cold drawn precision steel tube. 2 3

3 Dimensional ranges Delivery conditions Following finishes for EN and EN EN EN Wall thickness in (t) welded: Tol. ± 7,5% ,5 5 4,5 4 3,5 3 2,8 2,5 2,2 2 1,8 1,5 1,2 1 0,8 0,5 OD in Tol. in ± 0, ± 0, ± 0, ± 0, ± 0, ± 0, ± 0, ± 0, ± 0, ± 0, ± 0, ± 0, Wall thickness in (t) seamless: Tol. ± 10% 0,5 0,8 1 1,2 1,5 1,8 2 2,2 2,5 2,8 3 3,5 4 4,5 5 5, , Designation Abbreviation Explanation cold finished, hard cold finished, soft cold finished and stress relieved annealed normalised Steel qualities in acc. with EN Short name Steel quality + C Without heat treatment following final cold finishing. + LC + SR + A + N Material number E E E Other steel qualities on request The final heat treatment is followed by cold finishing in one pass. Following final cold finishing the tubes are stressrelieved in a controlled atmosphere. The tubes are annealed in a controlled atmosphere after final cold finishing. The tubes are normalised in a controlled atmosphere after final cold finishing. Scope of testing A 100% non-destructive eddy current test in acc. with EN is carried out at additional cost. A checking of the mechanical properties also takes place. The following tests may be carried out in addition to the standard EN tests: Ultrasonic test in acc. with EN , U3 Factory acceptance test Customer/third party acceptance Dimensional check using laser Impact test Material identification test Steel qualities in acc. with EN Special qualities of our production range Special dimensions or intermediate dimensions on request. Weight calculations: 0,02466 x t x (OD-t) = 0 [kg/m] Random lengths: Precision cut lenghts: Max. production in random lengths: up to Steel quality Short name Material number E C 15 C 35 E C 45 E Cm 45 P MnCr 5 20 MnCr 5 20 MnV 6 25 CrMo 4 34 CrMo 4 27 MnCrB 5 33 MnB 5 16 Mo 3 16 Mo 5 ASTMA 213 T 11 EN Coils on request EN Coils on request E P 460 N 42 CrMo 4 ASTMA 213 T 12 Standard range On request Standard range On request E E Delivery lengths E Other steel qualities on request Precision cut lengths: Manufactured lengths: 3000 to Coils: maximum coil weight: 20 kg 4 5

4 Dimensional range in EN in qualities E235 +N, E355 +N Precision steel tubes for hydraulic and pneumatic lines with special surface protection Wall thickness in ±7,5% Tolerances ± 0,08 ± 0,15 ± 0,20 Nominal (OD) dimension ,5 0,75 1 1,5 2 2, Special dimensions or intermediate dimensions on request Seamless cold drawn precision steel tubes for hydraulic and pneumatic lines Area of use The tubes are used for hydraulic or pneumatic lines. Assembly may be by means of detachable or non-detachable joints. Changes in the speed and pressure of the flowing medium occur during the operation of hydraulic systems. These changes in speed result in pressure surges which overlay the internal pressure. Thus the tube is subject to cyclic stress. The user is responsible for observing the pressurisation and temperatures permissible in line with the current state of the art and when applying the safety coefficients specified in the appropriate specifications, regulations and standards. Technical delivery terms Unlike EN , we produce these tubes with an inside diameter ranging from 4-10 with restricted tolerances and improved inner surface. The tubes are free from production residues which could impair the function of a hydraulic system. Types of execution Normalised, not phosphated Normalised, phosphated Normalised, additionally galvanized on the outside - blue or yellow chromate coating - max. length: 6,100 Cr VI free, thick layer passivation - max. length: 6,

5 Seamless cold drawn precision steel tubes for the manufacture of hydraulic, pneumatic and telescopic cylinders and piston tubes Precision steel tubes for honing, skiving and roller burnishing Technical delivery terms In general EN is applicable (EN on request). Deviating from this are the tolerances for inside diameter, concentricity and delivery condition plus straightness. Cylinder tubes: Dimensions and permissible machining allowances for E355 Precision steel tubes for the manufacture of piston tubes Technical delivery terms In general EN is applicable (EN on request). Deviating from this are the tolerances for inside diameter, concentricity and delivery condition plus straightness. Precision steel tubes for honing Precision steel tubes for skiving/roller burnishing Dimensions and permissible machining allowances for precision steel tubes for piston tubes Nominal wall thickness in 5 6 7, ,5 15 Nominal wall thickness in 5 6 7, ,5 15 Nominal wall thickness , ,5 15 Inside diameter in Nominal dimension Standard Choice Machining allowance Outer diameter Inside diameter in Nominal dimension Standard Choice Machining allowance Outer diameter Outside diameter Nominal dimension Standard Choice Machining allowance Inside diameter ,20 +0, ,20-0, ,20-0, ,40-0, ,25 +0, ,20-0, ,30 +0, ,20-0, ,25-0, ,50-0, ,30 +0, ,40 +0, ,60-0, ,40 +0, ,25-0, ,50-1, ,70 +1, ,70 +1, ,25-0, Intermediate dimensions on request ,70 +1, ,25-0, ,40-0, Delivery conditions Intermediate dimensions on request. Intermediate dimensions on request. Designation Abbreviation Delivery conditions Designation Abbreviation normalised + N normalised + N cold finished and stress relieved + SR cold finished and stress relieved + SR 8 9

6 Cold drawn profile and precision steel tubes in acc. with EN and EN Let s talk about your benefits. Profile shapes from our production Square tubes Flat tubes with round narrow sides Lemon shape outside/inside Star profile outside/inside Elliptical tubes Triangular tubes Special profile Externally toothed tubes Steel qualities from our production range All low-alloy qualities of structural steel, casehardened steel and tempered steel, nitrided steel, fine-grained grades, cryogenic qualities, creep-resistant steels. Area of use In accordance with the customer s description and specification, we deliver the solution as a precision shaped part for iediate use. We give substance to what can be achieved by drawing. Profiles with processing up to Ø 160 and wall thicknesses up to 14. Application in the following areas of use Agricultural machinery General mechanical engineering Structural steel Automotive industry Refrigeration and air conditioning systems Wagon building Leisure industry Long-standing material expertise voestalpine Präzisrohrtechnik is part of the globally active voestalpine group with its own crude steel base. It offers material and tube processing know-how from crude ore to cold drawn tube. In addition, it is possible to further process the cold drawn precision steel tubes produced by cold drawing by using various precision cut length units available in-house: cutting, sawing, chamfering, deburring and washing - everything under one roof from a single-source supplier! High quality standards and versatile range of dimensions Depending on the quality and quantity requirements, tailor-made solutions are developed in collaboration with the customer - from procurement of the pre-material to cold drawing of the tube, from customer-specific testing criteria and methods to packaging and logistics. Performance-oriented European suppliers of pre-materials guarantee the highest quality. High-tech production and testing systems and highly-qualified, motivated employees create the perfect platform for customer-oriented action. Our plant in Krieglach, Austria concentrates one of the largest ranges of dimensions in Europe into a single location. It illustrates impressively how resource-conserving, environmentally-compatible technology can ensure top-quality products. Many years of experience, continuous quality improvement and a tried and tested system of sales and distribution create the framework for the flexibility and speediness which helps our customers to be successful. Cooperation with the University of Leoben provides us with the decisive competitive edge in the field of research and development. Our network, know-how and experience make us what we are: *) experts for experts. Internal polygon 12 edges Internal polygon 8 edges Semi-circular profile Hexagonal tubes Other profile shapes on request 10 11

7 voestalpine Präzisrohrtechnik GmbH Sales office: Gruberstraße 2-4 A-4020 Linz, Austria T. +43/50304/18-0 F. +43/50304/ /08 E Production: Eisenhaerstraße 15 A-8670 Krieglach, Austria 12 voestalpine Rotec GmbH Headquarters Gruberstraße 2-4 A-4020 Linz, Austria T. +43/50304/20-0 F. +43/50304/